Setting The Boiler Control Function Modes - Biasi Advance Plus 25C Service Manual

Normally, the result of the comparison between these two signals
directly operates the fan speed adjusting the useful output gen-
erated in order to stabilize the temperature of the exiting water.
If during the d.h.w. mode operation, the temperature of the pri-
mary circuit goes over 90°C, the useful output is automatically
reduced so that the primary circuit cannot reach excessive tem-
peratures.
The control sequences in function
illustrated in detail in sections 9.7 and 9.8.

9.4 Setting the boiler control function modes

It is possible to select the various boiler control function modes
hereafter named "parameters" by using the keys of the control
panel p.c.b.
figure 9.5
1 To enter in the parameters setting mode press contemporary
the 3 keys (A - B - C Figure 9.5) for 10 second until the display
shows Figure 9.6.
figure 9.6
2 To move through the parameters press c.h. set keys (A or C
Figure 9.7)
figure 9.7
3 The display shows Figure 9.8
mAIN ELECTRoNIC CoNTRoL/IGNITIoN P.C.B.
and in function are
A
B
C
A
C
figure 9.8
4 To modify the parameter press contemporary the keys (A - B
Figure 9.9).
figure 9.9
5 To change the parameters press c.h. set keys (A or C Figure
9.7).
6 To memorize the setting press the key (B Figure 9.10).
figure 9.10
7 To exit for setting without modifing the set press the keys (B
- C Figure 9.11)
figure 9.11
To reset the boiler to the normal operation press contemporary
the 3 keys (A - B - C Figure 9.5) for 10 second.
The following table gives details of each parameter and the pos-
sible value that can be set.
A
B
B
B
C
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